SMA actuation apparatus

An SMA actuation apparatus (1) comprising: a plurality of SMA wires (71-78) arranged, on contraction, to (a) tilt a movable part (100) relative to a support structure (3) about a first axis (x) and (b) translationally move the movable part relative to the support structure perpendicular to a primary...

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Bibliographische Detailangaben
1. Verfasser:	Andrew Benjamin Simpson Brown
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM BLASTING CINEMATOGRAPHY ELECTROGRAPHY HEATING HOLOGRAPHY LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOTOTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISEPROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR PHOTOGRAPHY PHYSICS PRODUCING MECHANICAL POWER SPRING, WEIGHT, INERTIA OR LIKE MOTORS WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	An SMA actuation apparatus (1) comprising: a plurality of SMA wires (71-78) arranged, on contraction, to (a) tilt a movable part (100) relative to a support structure (3) about a first axis (x) and (b) translationally move the movable part relative to the support structure perpendicular to a primary axis (P); and a control circuit electrically connected to the SMA wires for supplying drive signals thereto, and configured to generate drive signals that combine the tilting and the translational movement to cause the movable element to tilt about a second axis (y) that is perpendicular to the primary axis and spaced from the first axis.